Alfonso IV of León

Alfonso IV of León, born in the year eight hundred ninety-nine, was a significant figure in the history of the Kingdom of León and Galicia. He ascended to the throne of Galicia in nine hundred twenty-nine, a position he held until his abdication in nine hundred thirty-one. His reign was marked by the complex dynamics of succession following the death of his brother, Fruela II of Asturias, in nine hundred twenty-five.

Upon Fruela's death, the throne did not pass to his sons but rather to Alfonso's cousin, Alfonso Fróilaz. This led to a power struggle among the sons of Ordoño II, including Alfonso Ordóñez and Sancho, who sought to reclaim their rightful place. With the backing of King Jimeno Garcés of Pamplona, they successfully ousted Alfonso Fróilaz, dividing the kingdom and establishing Alfonso Ordóñez as king of León and Sancho as king of Galicia.

In a surprising turn of events, Alfonso IV resigned his crown to his brother Ramiro in nine hundred thirty-one and retreated to a religious life. However, after a year of reflection, he took up arms alongside Fruela's sons, Ordoño and Ramiro, against Ramiro. This rebellion ended in tragedy for Alfonso, who was defeated, blinded, and ultimately returned to the cloister of Sahagún to spend his final days.

Alfonso IV was married to Onneca Sánchez of Pamplona, the niece of his ally Jimeno Garcés and daughter of Sancho I of Pamplona. Together, they had two children: Ordoño IV of León and possibly another son, Fruela, who later became embroiled in a land dispute during the reign of Ramiro III of León.